Six Degrees Dance Company, directed by Cecly Placenti, and Micheline Heal's Mich-Mash Productions, will join forces for "Mix-Tape: The Z-Sides," an evening of short pieces by Placenti, Heal and Yung Yung Tsuai Lerner - some shiny and new, some old and familiar, and some remixed just for these performances at the state-of-the-art Actors Fund Arts Center in Brooklyn.